Home / 38,742.10-53,469.72-21,753.36

Finding the Fourth Proportional to 38,742.10, 53,469.72 and 21,753.36

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Solution

The fourth proportional to 38,742.10, 53,469.72 and 21,753.36 is: 30,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,742.10 : 53,469.72 = 21,753.36 : x
  2. Step 2: Convert to fraction form
    38,742.10/53,469.72 = 21,753.36/x
  3. Step 3: Cross multiply
    38,742.10x = 53,469.72 × 21,753.36
  4. Step 4: Simplify right side
    38,742.10x = 1,163,146,068.26
  5. Step 5: Solve for x
    x = 1,163,146,068.26/38,742.10
  6. Step 6: Final answer
    x = 30,022.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.